Drinking-cup.



W. W. E. BOYER.

DRINKING CUR APPLICATION F'ILED MAYI7. 1918.

Patented Mar. 25, 1919.

INVENTOR:

% QLZZM M W UNITED STATES PATENT OFFICE.

WILLIAM W. E. BOYER, OF OKLAHOMA, OKLAHOMA.

DRINKING-CUP.

Application filed May 17, 1918.

To all whom it may concern Be'it known that I WVILLIAM W. E. BOYER, acitizen of the United States, and a resident of Oklahoma, in the countyof Oklahoma and State of Oklahoma, have invented certain new and usefulImprovements in Drinking-Cups, of which the following is aspecification, reference being had to the accompanying drawings.

The invention pertains to drinkin cups of the collapsible class, theobject being to provide a cup of this class which will be more durableand whose walls will form a better and more convenient seat for the lipsin drinking.

Figure 1 of the drawings is a perspective view showing the cup in itscollapsed form.

Fig. 2 shows the cup opened up.

Fig. 3 is a view at closer range, showing the binding used to secure thewalls of the cup together.

Fig. 1 is a reproduction of Fig. 3, but with the binding opened.

All the figures are perspectives taken in the same direction, and likecharacters of reference designate like parts in all of them.

The cup includes two side walls 5 of sheet celluloid or other materialwith elasticity enough to return to normal collapsed position after eachuse, and which is stiff and strong enough to form a solid and agreeableseating for the lips in drinking.

Since repeated opening and closing of the celluloid sides 5 on a foldingline would soon break them at said line, the inventor pro- Speeificationof Letters Patent.

Patented Mar. 25, 1919.

Serial No. 235,176.

virles a binding 6 of rubber or other suitable resilient material andemploys said binding to secure or hinge the edges 5 of the sidestogether.

This binding 6, best shown in Figs. 3 and 4, is substantially U-shapedin cross-section, each arm 6 of the U being deeply grooved, as at 6, andadapted to straddle the edges 5 of its respective side 5 of the cup.

This binding 6, while being substantially U-shaped in cross-section, isalso substantially U-shaped in general form, so as to extend along thebottom and up both edges of the cup.

The edges 5 of the two sides 5 are held in the grooves 6 of the binding6 by suitable cement.

The elastic binding 6, operating as a hinge, allows the cup to be openedand collapsed hundreds of times without breaking or even cracking.

The following is claimed I A cup including two normally flat walls ofelastic material, the edges of said walls being secured together by abinding of re silient material adapted to act as a hinge in allowing theopening and collapsing movements of the cup, the binding beingsubstantially U-Shaped in cross-section and having each of its armsgrooved, theedges of the sides being inserted in the grooves and beingheld therein by cement.

IVitness my hand this 24th day of April.

WILLIAM W. E. BOYER.

